With waterlogging or chilling treatment,The isozymes of Superoxide Dismutase(SOD),Esterase(EST),Peroxidase(POX),Catalase(CAT),and the changes of the content of Malondialdehyde(MDA) in maize were investigated.

• 对涝渍和低温胁迫下的玉米幼苗叶片进行了超氧物歧化酶（SOD）、酯酶（EST）、过氧化物酶（POX）、过氧化氢酶（CAT）四种酶的同工酶分析及丙二醛（MDA）含量的测定。